Nondestructiveflawdetection of concrete structures is a difficult task, especially for detection of small or shallow flaws.
混凝土结构缺陷的无损检测是一项非常困难的工作，尤其是小尺寸或浅层的缺陷检测非常困难。
2
Magnetic Flux Leakage detection is a new nondestructive testing technique and can be used for the rapid and accurate detection of the flaw and defect for steel structure.
漏磁检测是一个新的无损检测技术，它能快速准确发现钢结构损伤和缺陷。
3
Ultrasonic flaw-detection is widely used in nondestructive testing applications.